Portable Grilling Apparatus

ABSTRACT

A portable grilling apparatus includes a power adapter having first and second receiving areas each configured to respectively receive a battery, the power adapter having circuitry for receiving electricity at the first and second receiving areas and producing a single electrical output. The apparatus includes a grill portion having a lower grill housing, a support element having a cooking surface for receiving food thereon, and an electrical heating element in the lower grill housing. The electrical heating element is positioned below the cooking surface and the electrical heating element is in electrical communication with the single electrical output circuitry. The apparatus includes a positioning portion operatively coupling the power adapter to the grill portion, the positioning portion having an attachment member for securement to an object.

BACKGROUND OF THE INVENTION

This invention relates generally to grill devices and, moreparticularly, to a portable grilling apparatus for powering anelectrical heating element with a rechargeable battery removablyreceived in a power adapter.

Grilling meat products on an outdoor grill has become a favored activityfor many people—some on a year round basis. In fact, the activity of“tail-gating” in the parking lot prior to sporting events such asbaseball or football games has become almost a ritual for many sportsenthusiasts. This activity, however, requires significant preparationand planning and, unfortunately, is not possible during all sporting orleisure activities. Activities that include mobility and frequentmovement away from electricity may not be suitable for grilling. Forinstance, grilling has not been feasible while moving about a golfcourse. Nor has it been possible to grill while boating. Other exampleswhere grilling has not historically been possible are numerous and mayinclude long distance highway travel, hiking, off-road riding ofmotorcycles and 4-wheelers, or the like.

Various devices have been proposed in the art for powering ovens orgrills with power sources other than traditional AC electrical current.Although assumably effective for their intended purposes, the existingdevices have not presented a truly portable solution to grilling thatenables users who are “on the move” in a vehicle to enjoy the grillingexperience. In addition, the existing devices and proposals have notpresented a portable grill that is safe, secure, and efficient when usedin a moving vehicle.

Therefore, it would be desirable to have a portable grilling apparatusthat may be held securely and safely in a moving vehicle. Further, itwould be desirable to have a portable grilling apparatus having a poweradapter configured for using rechargeable batteries from variousrechargeable cordless tools. In addition, it would be desirable to havea portable grilling apparatus that is energy efficient for keeping meatproducts warm and to grill enough food for multiple persons beforebattery energy is expended.

SUMMARY OF THE INVENTION

A portable grilling apparatus according to the present inventionincludes a power adapter having first and second receiving areas eachconfigured to respectively receive a battery, the power adapter havingcircuitry for receiving electricity at the first and second receivingareas and producing a single electrical output. The apparatus includes agrill portion having a lower grill housing, a support element having acooking surface for receiving food thereon, and an electrical heatingelement in the lower grill housing. The electrical heating element ispositioned below the cooking surface and the electrical heating elementis in electrical communication with the single electrical outputcircuitry. The apparatus includes a positioning portion operativelycoupling the power adapter to the grill portion, the positioning portionhaving an attachment member for securement to an object.

Therefore, a general object of this invention is to provide a portablegrilling apparatus for enabling sports enthusiasts to enjoy grillingwhile engaging in a mobile activity.

Another object of this invention is to provide a portable grillingapparatus, as aforesaid, that may be adjustably positioned and heldsecurely in a moving vehicle.

Still another object of this invention is to provide a portable grillingapparatus, as aforesaid, having a power adapter for receiving at leastone rechargeable battery.

Yet another object of this invention is to provide a portable grillingapparatus, as aforesaid, that is efficient enough to prepare food itemsfor more than one person before its batteries need to be recharged.

Other objects and advantages of the present invention will becomeapparent from the following description taken in connection with theaccompanying drawings, wherein is set forth by way of illustration andexample, embodiments of this invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a portable grilling device according toa preferred embodiment of the present invention;

FIG. 2 a is a top view of the grilling device as in FIG. 1;

FIG. 2 b is a side view of the grilling device as in FIG. 1;

FIG. 3 is an exploded view of the grilling device as in FIG. 1;

FIG. 4 is an exploded view on an enlarged scale of the lid removed fromthe lower grilling housing; and

FIG. 5 a is another top view of the grill housing as in FIG. 2; and

FIG. 5 b is a sectional view taken along line 5 b-5 b of FIG. 5 a.

DESCRIPTION OF THE PREFERRED EMBODIMENT

A portable grilling apparatus according to the present invention willnow be described in detail with reference to FIGS. 1 through 5 of theaccompanying drawings. More particularly, a portable grilling apparatus100 according to one embodiment includes a power adapter 110, a grillportion 130, and a positioning portion 170.

The power adapter 110 may have a first receiving area 112 configured toreceive one battery 12 and a second receiving area 114 configured toreceive another battery 14, as shown in FIGS. 1 through 3. The poweradapter 110 has circuitry for receiving electricity (e.g., at thereceiving areas 112, 114) and producing a single electrical output. Insome embodiments, the first and second receiving areas 112, 114 may beconfigured to each receive a rechargeable cordless tool battery, such asa rechargeable 18-volt cordless tool battery. Those skilled in the artwill appreciate, however, that the receiving areas may be configured toreceive different batteries and that different batteries may be used.

The grill portion 130 has a lower grill housing 132 (FIGS. 1, 2 b, and3) and a support element 134 operatively coupled to the lower grillhousing 132. The lower grill housing 132 may be constructed of metaland/or other fire-resistant materials and may be any appropriate size,as will be appreciated by those skilled in the art. The support element134 has a cooking surface 135 for receiving food thereon, and thesupport element 134 may be, for example, a metal grate (as shown inFIGS. 1 and 3) or a griddle. An electrical heating element 136 ispositioned in the lower grill housing 132 below the cooking surface 135(FIG. 1) and is in electrical communication with the single electricaloutput circuitry, and a catch pan 139 (FIG. 3) may also be below thecooking surface 135.

As shown in FIGS. 1 through 4, a lid 142 may be movably coupled to thelower grill housing 132 (e.g., by hinges 143) such that the lid 142 ismovable between an open position 142 a in which the cooking surface 135is exposed (FIGS. 1 through 2 b) and a closed position (not shown) inwhich the cooking surface 135 is covered. The lid 142 may be constructedof metal and/or other fire-resistant materials and may be sizedcomplementary to the lower grill housing 132. Means may be included formaintaining the lid 142 at the closed position, such as a latch orsprings in the hinges 143.

Another cooking surface 145 may be operatively coupled to the lid 142and generally parallel to the cooking surface 135 when the lid 142 is atthe closed position. The cooking surface 145 may be, for example, ametal grate (as shown in FIGS. 1, 3, and 4) or a griddle. Anotherelectrical heating element 146 (FIGS. 1, 3, and 4) may be in the lid 142above the cooking surface 145 and in electrical communication with thesingle electrical output circuitry.

A switch 150 (FIGS. 1 through 3) is in electrical communication with thesingle electrical output circuitry such that power from the singleelectrical output circuitry selectively powers the electrical heatingelement 136. The switch 150 or another switch in electricalcommunication with the single electrical output circuitry may similarlyallow power from the single electrical output circuitry to selectivelypower the electrical heating element 146.

Means may be included for automatically adjusting the cooking surface135 and/or the cooking surface 145 such that distance between thecooking surfaces 135, 145 is automatically adjusted when food is placedupon the cooking surface 135 and the lid 142 is moved to the closedposition. For example, as best shown in FIG. 5, the cooking surface 145may be operatively coupled to the lid 142 by spring members 160 thatallow the cooking surface 145 to move relative to the cooking surface135. Additionally, or alternately, the cooking surface 135 may beoperatively coupled to the lower grill housing 132 by spring members 160that allow the cooking surface 135 to move relative to the cookingsurface 145. Due to the spring members 160, the cooking surfaces 135,145 may be positioned relatively close together before food is placedatop the cooking surface 135 and the lid 142 is moved to the closedposition, and then spread apart to allow food placed atop the cookingsurface 135 to properly contact both cooking surfaces 135, 145 when thelid 142 is moved to the closed position.

As shown in FIGS. 1 through 3, the positioning portion 170 operativelycouples the power adapter 110 to the grill portion 130. The coupling maybe permanent or may be reversible (e.g., using plugs 171 a, 171 b shownin FIG. 3). The positioning portion 170 includes an attachment member172 for securement to an object, and though not shown, the attachmentmember 172 may include a clamp, bolt, or other fastening element. Atelescoping member 174 of the positioning portion 170 may be used toadjust spacing between the grill portion 130 and the receiving areas112, 114 of the power adapter 110, and lock 175 may maintain thetelescoping member 174 at various spacings. Similarly, a sliding member176 of the positioning portion 170 may be used to adjust spacing betweenthe grill portion 130 and the receiving areas 112, 114 of the poweradapter 110, and lock 177 may maintain the sliding member 176 at variousspacings. As shown in the drawings, the telescoping member 174 mayfurther allow the grill portion 130 to move relative to the attachmentmember 172, and the sliding member 176 may allow the power adapter 110to move relative to the attachment member 172. An angle-adjusting member178 of the positioning portion 170 may be used to angularly adjust thegrill portion 130 relative to the receiving areas 112, 114 of the poweradapter 110. The angle-adjusting member 178 may be, for example, alockable ball and socket joint, as shown in FIG. 1.

The adapter circuitry may also include means for determining an amountof voltage remaining in a battery or batteries received in respectivereceiving areas. It is understood that by determining a quantity ofremaining voltage, it may be estimated how much time remains forpowering the heating element(s). The quantity of voltage may beindicated to a user on a display, with one or more LED lights, a gauge,or the like (not shown) so that the user may plan grilling activityaccordingly. In other embodiments, the adapter circuitry may even beconfigured to deactivate the heating element(s) when the voltage is lessthan a predetermined amount.

In use, the attachment member 172 may be coupled to any appropriateobject, and the position of the power adapter 110 and the grill portion130 may be adjusted using the telescoping member 172, the sliding member176, and/or the angle-adjusting member 178, as set forth above. Eitherbefore or after the power adapter 110 and the grill portion 130 arepositioned, batteries 12, 14 may be received in the receiving areas 112,114. The circuitry may produce a single electrical output, which forexample combines the output of the batteries 12, 14. By activating theswitch 50, the single electrical output may power the electrical heatingelements 136, 146 and warm the cooking surfaces 135, 145. It may bedesirable for the lid 142 to be at the closed position while the cookingsurfaces 135, 145 are warming. When the cooking surfaces 135, 145 are atthe desired temperature, food may be placed upon the cooking surface 135and the lid may again be returned to the closed position. Due, forexample, to the spring members 160, distance between the cookingsurfaces 135, 145 is automatically adjusted when the food is placed uponthe cooking surface 135 and the lid 142 is moved to the closed position,as set forth in detail above.

It is understood that while certain forms of this invention have beenillustrated and described, it is not limited thereto except insofar assuch limitations are included in the following claims and allowablefunctional equivalents thereof.

1. A portable grilling apparatus, comprising: a power adapter having afirst receiving area configured to receive a rechargeable battery, saidpower adapter having circuitry for receiving electricity at said firstreceiving area and producing an electrical output; a lower grillhousing; a support element operatively coupled to said lower grillhousing, said support element having a cooking surface for receivingfood thereon; an electrical heating element in said lower grill housing,said electrical heating element being below said cooking surface, saidelectrical heating element being in electrical communication with saidelectrical output circuitry; and a switch in electrical communicationwith said electrical output circuitry such that power from saidelectrical output circuitry selectively powers said electrical heatingelement.
 2. The portable grilling apparatus of claim 1, furthercomprising: a lid movably coupled to said lower grill housing, said lidbeing movable between an open position in which said cooking surface isexposed and a closed configuration in which said cooking surface iscovered; means for maintaining said lid at said closed position; and asecond electrical heating element in said lid, said second electricalheating element being in electrical communication with said singleelectrical output circuitry.
 3. The portable grilling apparatus of claim2, wherein said switch or another switch is in electrical communicationwith said second electrical heating element such that power from saidsingle electrical output circuitry selectively powers said secondelectrical heating element.
 4. The portable grilling apparatus of claim3, further comprising: a secondary cooking surface operatively coupledto said lid; and means for automatically adjusting at least one of saidcooking surface and said secondary cooking surface such that food onsaid cooking surface also contacts said secondary cooking surface. 5.The portable grilling apparatus of claim 4, further comprising anattachment member operatively coupled to said power adapter for securingsaid power adapter to an object.
 6. The portable grilling apparatus ofclaim 5, further comprising: a telescoping member operatively coupled tosaid lower grill housing for adjusting spacing between said lower grillhousing and said first and second receiving areas of said power adapter;and an angle-adjusting member operatively coupled to said lower grillhousing for angularly adjusting said lower grill housing relative tosaid first and second receiving areas of said power adapter.
 7. Theportable grilling apparatus of claim 6, wherein said angle-adjustingmember includes a lockable ball and socket joint.
 8. The portablegrilling apparatus of claim 1, further comprising a second receivingarea configured to receive a rechargeable battery; wherein said poweradapter circuitry is configured for receiving electricity from saidfirst and second receiving areas and producing a single electricaloutput.
 9. The portable grilling apparatus of claim 8, wherein saidfirst and second receiving areas are each configured to respectivelyreceive a rechargeable 18-volt cordless tool battery.
 10. The portablegrilling apparatus of claim 1, further comprising: an attachment memberoperatively coupled to said power adapter for securing said poweradapter to an object; a telescoping member operatively coupled to saidlower grill housing for adjusting spacing between said lower grillhousing and said first and second receiving areas of said power adapter;and an angle-adjusting member operatively coupled to said lower grillhousing for angularly adjusting said lower grill housing relative tosaid first and second receiving areas of said power adapter.
 11. Aportable grilling apparatus, comprising: a power adapter having areceiving area configured to receive a battery, said power adapterhaving circuitry for receiving electricity at said receiving area andproducing a single electrical output; a lower grill housing; a supportelement operatively coupled to said lower grill housing, said supportelement having a cooking surface for receiving food thereon; anelectrical heating element in said lower grill housing, said electricalheating element being below said cooking surface, said electricalheating element being in electrical communication with said singleelectrical output circuitry; a lid movably coupled to said lower grillhousing, said lid being movable between an open position in which saidcooking surface is exposed and a closed position in which said cookingsurface is covered; means for maintaining said lid at said closedposition; a second electrical heating element in said lid, said secondelectrical heating element being in electrical communication with saidsingle electrical output circuitry; a secondary cooking surfaceoperatively coupled to said lid, said secondary cooking surface beinggenerally parallel to said cooking surface when said lid is at saidclosed position; and a switch in electrical communication with saidsingle electrical output circuitry such that power from said singleelectrical output circuitry selectively powers said electrical heatingelement, said switch or another switch being in electrical communicationwith said second electrical heating element such that power from saidsingle electrical output circuitry selectively powers said secondelectrical heating element; wherein at least one of: (a) said cookingsurface is operatively coupled to said lower grill housing by a springmember such that distance between said cooking surface and saidsecondary cooking surface is automatically adjusted when food is placedupon said cooking surface and said lid is moved to said closed position;or (b) said secondary cooking surface is operatively coupled to said lidby a spring member such that distance between said cooking surface andsaid secondary cooking surface is automatically adjusted when food isplaced upon said cooking surface and said lid is moved to said closedposition.
 12. The portable grilling apparatus of claim 11, wherein saidpower adapter further includes a second receiving area configured toreceive a second battery, said power adapter circuitry being configuredto receive electricity at said receiving area and said second receivingarea and produce a single electrical output.
 13. The portable grillingapparatus of claim 12, wherein said receiving area and said secondreceiving area are each configured to respectively receive arechargeable 18-volt cordless tool battery.
 14. The portable grillingapparatus of claim 11, wherein said adapter circuitry includes: meansfor determining a quantity of voltage in said battery received at saidreceiving area; and means for indicating said quantity of voltage insaid battery received at said receiving area.
 15. A portable grillingapparatus, comprising: a power adapter having first and second receivingareas each configured to respectively receive a battery, said poweradapter having circuitry for receiving electricity at said first andsecond receiving areas and producing a single electrical output; a grillportion having: (a) a lower grill housing; (b) a support elementoperatively coupled to said lower grill housing, said support elementhaving a cooking surface for receiving food thereon; (c) an electricalheating element in said lower grill housing, said electrical heatingelement being below said cooking surface, said electrical heatingelement being in electrical communication with said single electricaloutput circuitry; and a positioning portion operatively coupling saidpower adapter to said grill portion, said positioning portion having anattachment member for securement to an object.
 16. The portable grillingapparatus of claim 15, wherein said positioning portion furthercomprises: a telescoping member for adjusting spacing between said grillportion and said first and second receiving areas of said power adapter;and an angle-adjusting member for angularly adjusting said grill portionrelative to said first and second receiving areas of said power adapter.17. The portable grilling apparatus of claim 16, wherein saidangle-adjusting member includes a lockable ball and socket joint. 18.The portable grilling apparatus of claim 17, wherein said first andsecond receiving areas are each configured to respectively receive arechargeable 18-volt cordless tool battery.
 19. The portable grillingapparatus of claim 16, further comprising: a lid movably coupled to saidlower grill housing, said lid being movable between an open position inwhich said cooking surface is exposed and a closed position in whichsaid cooking surface is covered; means for maintaining said lid at saidclosed position; a second electrical heating element in said lid, saidsecond electrical heating element being in electrical communication withsaid single electrical output circuitry; a secondary cooking surfaceoperatively coupled to said lid, said secondary cooking surface beinggenerally parallel to said cooking surface when said lid is at saidclosed position; and means for automatically adjusting at least one ofsaid cooking surface and said secondary cooking surface such thatdistance between said cooking surface and said secondary cooking surfaceis automatically adjusted when food is placed upon said cooking surfaceand said lid is moved to said closed position.
 20. The portable grillingapparatus of claim 15, wherein said adapter circuitry includes: meansfor determining a quantity of voltage in said respective batteriesreceived at said first and second receiving areas; and means forindicating said quantity of voltage in said respective batteriesreceived at said first and second receiving areas.